JPS63203510A - Band pool device in packaging machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a band pool device in a packaging machine.

[Prior art]

As shown in FIG. 8, numeral 10 is a so-called vertical fully automatic packing machine, which supplies bands, grips the tip end, pulls back the supply side,
A main body 11 having a substantially rectangular box shape and containing a built-in control 50 that constitutes various mechanisms for tightening, cutting, and adhering band overlapping parts, and a work table 1 placed on the top surface of this main body 11.
A U-shaped band guide arch 12 is provided at the center of the main body 8 and extends across both edges in the longitudinal direction, and a band coil can be loaded in a direction perpendicular to the band guide arch 12 provided on the longitudinal side of the main body 11. It is equipped with a band reel 13, and also,
A pool unit 30 configured with a pool feed unit 20 for feeding a coiled band loaded on a band reel 13 into a pool box 21 is provided on a side surface of the main body 11 that is on the same plane as the band guide arch 12. There is. As shown in FIG. 8, the pool box 21 constituting the pool unit 30 has a horizontally long rectangular shape, and one side of the front plate 43 is attached to the outer panel 44 of the main body with a gap much larger than the width of the band. The pool box 21 is formed into a box shape and faces parallel to each other through the pool box 21. The pool box 21 has a size that can accommodate at least a larger amount of bands than the amount of bands supplied to the band guide arch 12 in a bright color. is formed. Reference numeral 14 denotes a back pool, which is formed into a box shape from a plate material 39 that faces the outer panel 44 of the main body with a gap much larger than the width of the band, similar to the pool box 21, and has approximately the lower half adjacent to the pool box 21, and has a box shape. The space is communicated, forming a part of the pool box, and the road half faces the rear plate 46 on the outer panel 44 through the gap, facing the tension arm 16 described later and forming the band outlet 4.
9 is formed. Reference numeral 45 denotes a door cover, which is provided with a hinge on the upper side edge of the plate member 39, facing the protruding piece 46' of the rear plate 46, so that the core space can be opened and closed. That is, the band exit 49 is connected to the back pool 14.
This means that it is on the extension line of the upper edge of the front plate 43 of the space. As shown in FIG. 8, the configuration of the pool feed unit 20 provided at the lower edge of the pool box 21 is such that a drive roller 22 is connected to a pulley 31 via a shaft supported by a bearing in a bearing case 25. Pulley 3
1 is connected to a boule motor (not shown) by a V-belt 32. Further, the idler roller 23 is supported by an eccentric shaft 24, a lever 47 is attached to one end of the eccentric shaft 24, and an adjuster bin 27 is inserted through the other end. A spring 3 is attached to the lower end of this adjuster bin 27.
One end of this spring 38 is connected, and the other end of this spring 38 is connected to a spring hook 36 attached to the bearing case 25. The spring 3B always rotates the eccentric shaft 24 in a fixed direction (clockwise in FIG. 8) via the adjuster turbine 27, thereby bringing the idler roller 23 into sliding contact with the drive roller 22. An angled balance par 29 is rotatably supported on the eccentric shaft 24, and this balance par 29 is inserted into the pool box 21. Further, an interlocking rod 28 is protruded from the balance par 29, one end of a spring 37 is connected to the tip of the interlocking rod 2B, and the tip of an m-adjustment bolt 34 is connected to the other end of the spring 37. The adjustment bolt 34 is attached to be able to move forward and backward within the screw hole of the disc member 35, and as the adjustment bolt 34 moves forward and backward, the tensile force of the spring 37 that pulls the interlocking rod 28, that is, the balancer 29 upward, is increased. be adjusted. A limit switch (not shown) is provided on the lower surface of the bearing case 25 with its lead piece facing below the tip of the interlocking rod 28. That is, the tension of the band in the pool box 21 (Ill) causes the balance par 29
That is, when the interlocking rod 2B vibrates downward and comes into contact with the reed piece of the limit switch, the pool motor is turned OFF and the drive roller 22 is stopped, and conversely, the pool box 2
When the band amount within 1 decreases and the balancer 29, that is, the interlocking rod 28 moves upward and away from the reed piece of the limit switch, the boolean motor is turned on and the drive roller 23 is rotated. In addition, 26 is a pool shooter equipped with a groove for passing the band. Further, the tension arm 15 vibrates due to the rotation of the cam and tightens the band. This tension arm 15
The entrance of the band guide groove formed on the upper part serves as the band exit 49 of the back boule 14 when the tension string arm 15 vibrates.
(See Fig. 8). In an apparatus configured as described above, loading a band is performed by releasing the brake of the band reel 13, pulling out a band of a desired length from the band coil of the band reel 13, and then pressing the lever 4.
7 in the counterclockwise direction on the paper in FIG.
The feed unit is composed of a pair of feed rollers (not shown) that are inserted between the front plate 43 and the plate material 39 to introduce the band from pH 63 between the front plate 43 and the plate material 39 to the tension band arm 15 in the door M4S, and then supply the band to the outside of the main body and pull it back. (See Figure 8). This band loading has been completed, and since no bands are pooled in the pool box 21 yet, the balance par 2
9 is at the position of two points rts in FIG. 4 by the spring 37, and the idle roller 23 is always in sliding contact with the drive roller 22 under the bias of the spring 38. When the motor power is turned on, the tip of the interlocking rod 28 is separated from the reed piece of the limit switch (not shown) due to the bias of the spring 37, so the pool motor is turned on and the drive roller 22 rotates. As a result, the idle roller 23 slidingly in contact with the drive roller 22 is also rotated via the band by the bias of the spring 3B, and the band reel 13 is rotated to feed the band into the pool box 21. When the band in the pool box 21 reaches a predetermined amount and the tension (waist) causes the balance par 29 to vibrate downward in FIG. It vibrates in the rotational direction and comes into contact with the lead piece of the limit switch. At the same time, the pool motor is turned off and feeding of the band into the pool box 21 is stopped. The band pooled in the pool box 21 is then fed into the band guide arch 12 and the pool box 21
When the amount of band within decreases, the interlocking rod 28 rotates together with the balancer 29 in the clockwise direction in the paper of FIG. *The moving roller 22 and the floating roller 23 rotate, and the band is fed into the pool box 21. After that, when a predetermined band is pooled, the balance parr 28 is pushed downward again, and the same process as above is carried out. Stop feeding the band. In this way, the above operation is repeated as the number of hands in the pool box 21 decreases by supplying bands to the band guide arch 12, and the amount of bands in the pool box 21 is maintained at a predetermined amount. This vJ monitoring of the pool amount can be performed by operating the adjustment port 34 to appropriately change the tensile force of the spring 37, that is, the timing of the vibration of the balancer 28, as described above. After being supplied to the band guide arch 12, it is pulled back by a pair of feed rollers (not shown), and the tension arm 1 is pulled back by a pair of feed rollers (not shown).
The supply side of the band tightened by 6 is pooled in a back pool 14 provided in the main body 11 in a somewhat slack state.

[Problem] In the band pool device equipped with the conventional pool amount detection mechanism consisting of the above-mentioned balancer, the conventional pool box 21 installed parallel to the band guide arch 12 is inevitably installed inside the main body 11. Moreover, since it is located deep inside the main body 11, such as other devices such as an electric control section, the operator C cannot load the band or adjust the pooling amount of the band by adjusting the biasing force of the spring 37. It is necessary to open the front cover of 11 and insert your hand deep into the main body 11, which is dangerous and extremely complicated.
Because the edict roller is constantly rotating, depending on the amount of bands in the pool box, the band may simply rub between the two rollers, and the balance bar may flap around, which is unpleasant. It had In addition, because the waveform deformation of the band is irregular due to the condition of the band, its hardness, wideness and narrowness, when the position where the band is pooled in the pool box is shifted, the band tension or gravity applied to the balancer may be significantly affected. Due to the difference, the limit switch operation may be inaccurate, the amount of pool may be sensed slowly, and the packaging process may be adversely affected. For example, when using a band with relatively high tension (strong waist) such as a polyester band, even a small amount of band pool in the pool box may push the balance bar, so do not use a band with sufficient tension. Situations such as not being able to play in the pool may occur. In addition, in special packaging machines where the total length of the arch is extremely long, it is essential to secure a band pool that is equal to or greater than the total length of the arch in order to supply the band into the arch using the feed roller. However, in this type of band pool device, the pool box 2
1 is installed inside the main body 11, the size of the pool box 21 is restricted to be less than the size of the main body 11, making it difficult to pool a sufficient amount of bands. Furthermore, the pooled band gradually loses its elasticity and there is no tension to press the balance bar, and the pressure for detecting the amount of pooling decreases, causing the band to be fed and pooled more than necessary. If the band is not used for a certain period of time and the band is not used for a certain period of time, it is necessary to pull out all the bands from the pool box of the packing machine, otherwise the folded band will be inside the band guide arch when the next time the band is supplied. There was a drawback that if the band got caught, it would interfere with the supply of air into the guide arch.

[Object of the Invention] The present invention was developed in order to eliminate the drawbacks of the conventional one-balance bar type described above, and its purpose is to:
It is possible to always accurately and reliably pool the desired amount of bands without damaging the bands, and it does not prevent the band from folding, causing the pooled bands to become unusable the next time they are packed. An object of the present invention is to smoothly supply a required amount of bands to a band guiding arch by providing a band pooling device that does not cause the band to flow. [Technical means] In order to achieve the above object, the present invention provides band supply,
Main body 1 equipped with various mechanisms necessary for tightening, gluing, and cutting packaging
1, a band guide arch 12 attached to one side of the main body, and a band guide arch 12 for arranging the band around the object to be packaged by positioning the band parallel to the side, and a band guide arch 12 having a band inlet 48 and an outlet 49; In an automatic packing machine that is provided to supply bands from a band coil 65 to the band guide arch 12 via the band supply mechanism through a pool box 21 having a wide gap, the pool box 21 is located near one side of the pool box. A plurality of fixed rollers 3 are supported at appropriate intervals above the pool box, and the pool box extends from near one side of the pool box near the plurality of fixed rollers to near the other side facing this one side. A dancer roller 4 is provided that can freely reciprocate on the same straight line extending downward into the box 21, and a stopper 1 that keeps the band constant is provided near the band supply and tightening mechanism and/or the band outlet 49 of the pool box 21. It is characterized by

[Effect]

Therefore, the dancer roller 4 is fixed to the fixed roller 3 above the pool box 21 near one side of the pool box.
A plurality of both rollers 3,
4, and fix the core band with the band supply and tightening mechanism and/or a stopper provided near the band outlet 49 of the pool box 21, and then fix the core band between the pool boxes 21 and 21 near the other side facing the one side. By moving the dancer roller 3 downward in the box 21, the band is alternately reciprocated between the two rollers 3 and 4 of the ring number, and then the dancer roller 3 is returned to the one side and the band is moved back and forth. During the descent of the dancer roller 3, when the band of the packing machine is pulled back and tightened, the band supply and tightening mechanism and/or the stopper 1 provided near the band outlet 49 of the pool box 21 are opened. By placing the pulled back and tightened bands in the pool box 21, the bands are welded and then tightened.
By operating the stopper 1 and fixing the band during cutting and until the band pool amount reaches a predetermined amount for the next band feeding, the band is prevented from entering the pool box 21 from the packing machine main body 11 side. By stopping, it is possible to always pool exactly a certain amount of bands so that they can be immediately fed into the packing machine.

【Example】

The details of the present invention will be explained below based on figures showing examples. Note that the same reference numerals are used for the same members as in the conventional example. In Fig. 1, numeral 10 is a so-called fully automatic m-wrapping machine, which is equipped with various mechanisms necessary for packaging such as band feeding, tightening, gluing, and cutting. A band guiding arch 12 is provided for positioning the band and arranging the band around the object to be packed. 18 is a work table on which objects to be packed are placed. Reference numeral 21 denotes a pool box, in which four plates 6 extend longitudinally from above inside the pool box 21 near one side of the pool box to below inside the pool box 21 near the other side facing this one side. Three grooves 5 are formed by arranging the grooves 5 in parallel at appropriate intervals, and the plate material 6 and the outer plate 43 face each other with a gap slightly wider than the band width to accommodate the band. It is formed into a box shape that consists of two parts. At the top near one side of the pool box, there is a band inlet 48 on the right side in FIG. 1 and a band outlet 4 on the left side.
9 are provided respectively. A stopper 1 and a stopper 2 are provided near a band entrance 48 and a band exit 49 in the pool box 21, respectively. Stoppers 1 and 2 are equipped with limit switches LS7. The LS8 is attached and outputs a band presence detection signal between the two to the inside of the packaging machine body described later, the solenoid valve of the air cylinder of the dancer roller, and the electric control system. Also, this stopper 1゜2 is a rod 7 operated by an air cylinder or solenoid.
is provided, and when the limit switch is operated, the rod 7 protrudes and grips and fixes the band between it and one end of the support plate 9. Note that the other end of the support plate 9 is connected to the pool box 21.
It protrudes outward and has a guide roller attached to it. Four rotatable fixed rollers 3 are pivoted at equal intervals at a lower position in the pool box 21, slightly near the other side of the band openings 48, 49 of the four plates 6. 4 is a dancer roller, and as shown in FIG. 2, a sliding plate 66 connected via a reciprocating member 16 to an air cylinder 17 provided on the back side of the pool box 21 slides on guide poles 67 and 68 of 2. The grooves 5 between the plates 6 on the same straight line extend from the vicinity of the one side surface to the lower part of the pool box 21 near the other side surface facing this one side surface. Three shafts 19 are attached and protrude through the grooves 5 between the plates 6.
Dancer rollers 4 are each supported by a shaft, and are configured to be able to reciprocate on the groove 5 in synchronization with the elevation and descent of the reciprocating member 16. The three dancer rollers 4 are arranged in the vicinity of the four fixed rollers 3, that is, at intermediate positions, and are arranged at equal intervals. Upper band entrance/exit 48 in the pool box 21 near one side of the
．． 49, and faces the one side of the pool box 21 whose lowering limit, that is, the other limit of movement, is adjustable by the control mechanism of the air cylinder. Any position below inside the pool box 21 near the other side (the first
This is the position ff1) indicated by the symbol Z in the figure. Inside the pool box 21, there is a limit switch LSI (not shown) which operates at the upper limit position and lower limit position of the dancer roller 3 and generates detection signals for the upper limit and lower limit of the dancer roller 3. and LS2 are provided. still,
It is a 65 band coil. The operation of each device in the above-described embodiment will be explained below. To load the band into the pool box 21, move the dancer roller 4 upward in the pool box 21 near one side.
Stop at the upper limit position, and press stopper 1 and stopper 2.
are in the OFF state with the Mitswitch LSI as long as they both rise,
Therefore, the band is not fixed. First, pull out an appropriate length of the band from the band reel and insert it into the band entrance 4.
8 into the pool box 21. The band is formed between the stopper 2 and the support plate 9, between the fixed roller 3 and the dancer roller 4, and between the stopper 1 and the support plate 9.
from the band outlet 49 through the gap between the pool box 2
1, and is fed between feed rollers (not shown) in the packaging machine main body from the band entrance of the packaging machine main body. At this time, the reach of the band to the core is detected by the lead piece of the limit switch LS3 provided near the feed roller in the packing machine main body, and the stopper 1 is turned on by the signal of the limit switch LS3, and the band exits the pool box. is fixed and loading of the band is completed. In the initial state of the device after band loading is completed, the stopper 1 is located near the feed roller in the packing machine main body as described above.
ON by the signal of limit switch LS3 provided in
The rod 7 grips and fixes the band to the support plate 9. The band inside the pool box 21 is a fixed roller 3,
There is a straight line between the dancer and the roller 4, the stopper 2 is OFF, and the band on the entrance 4B side of the pool box 21 is not fixed. The activation switch operates the air cylinder 17 on the back of the pool box, and the reciprocating member 16, ie, the dancer roller 4, starts to move downward into the pool box 21 near the other side. At this time, since the band is gripped and fixed by the stopper 1 on the side of the band outlet 49 of the pool box 21, the band is fed into the pool box while being pulled out from the band coil 65, and the plurality of fixed rollers 3 and the dancer 4-94 In between, the fish alternately go back and forth and are in a lowered state. When the dancer roller 4 reaches its lower limit (point fi indicated by Z in FIG. 1), the limit switch LS2 provided on the other side of the pool box 21 causes the air cylinder 17 to operate in reverse. The dancer roller begins its upward return movement. This causes the band to pool downwards. When the dancer roller 3 reaches its upper limit, the signal from the limit switch LSI installed at the top of the pool box 21 turns off the stopper 1, turns on the stopper 2, and releases the band fixation on the exit 49 side of the pool box 21. The band on the 4th entrance side is fixed. At the same time, the feed roller within the packaging machine body starts rotating normally to feed the band into the band guide arch 12. Band guides arch 12
It goes around the inside and reaches a slide table (not shown) that forms part of the band welding and cutting mechanism. A limit switch LS4 provided under the slide table issues a signal to detect the arrival of the band tip, and this signal starts pulling back and tightening the band. In other words, the press member grips the band tip side by rotation of the camshaft (not shown),
At the same time as the feed roller starts to reverse and pull back the band, the air cylinder 17 which detects the rotation angle of the camshaft is turned on and the dancer roller 4 moves downward again.
The pulled back band is packed and pooled in the pool box 21 (the position indicated by the symbol X in FIG. 1). At this time, since the stopper 2 is ON, the band coil 65 is
There is no flow of the band from the to the pool box 21,
Prevent pooling of extra amount of bands. When the band is wound around the object to be packed, the reverse rotation of the feed roller is completed by a known pullback end detection device. At this time, the tension arm is further vibrated by the air cylinder to tighten the band while the stopper 1 remains OFF and the stopper 2 remains ON. During this time, the dancer roller 3 continues to move downward, and the band tightening portion is also packed and pooled in the pool box 21. When the band tightening is completed, the band tightening completion detection device turns the stopper 1 ON and the stopper 2 OFF, respectively, and at the same time each process of band melting, cutting, and bonding ends. During this time, the dancer roller 3 continues to move downward by the air cylinder 17, and the band for next packaging is pooled in the pool box 21 through the band coil 65 and the band inlet 48. When the dancer roller 3 reaches the lowering limit near the other side of the pool box 21, a limit switch LS2 provided at the bottom of the pool box 21 is activated, and the air cylinder 17 causes the dancer roller 3 to start rising. dancer
When the roller 3 reaches its upper limit, a limit switch LSI (not shown) provided at the top of the pool box 21 turns stopper 1 OFF and stopper 2 ON. The band is ready for feeding for the next packing. state. Thereafter, feeding of the band, pulling back while pack-pooling the band, tightening, cutting of the band, adhesion, and further band-pooling of the band necessary for the next band feeding are repeated. A second embodiment of the present invention is shown in FIGS. 3, 4, and 5. In FIG. ,
It consists of a band guide arch 12. The packaging machine main body 11 has a band supplying, tightening, adhesion, and cutting mechanism, and is suspended and fixed to an elevating frame 56 driven by a motor M via a chain 69 installed on one side of the frame 55. , is provided so as to be movable up and down together with the elevating frame 56. As shown in FIG. 4, inside the packing machine main body 11, there is a bearing case 51 rotatably supporting a pair of feed rollers 52 driven by a motor to feed the band to the guide arch 12, and a bearing case 51 which is vibrated by an air cylinder mechanism. , has a tension arm 15 for tightening the band, and a bending part in the middle, is connected to the tension arm 15, and is connected to the tension arm 1.
A tensile arm shooter 62 that vibrates together with 5 is built-in. A stopper 1 is provided for gripping and fixing the tension arm shooter 62 (by protruding the rod 7 using a solenoid or the like). It consists of upper arches 57, 58, vertical arches 59, 60, and lower arch 61, which are in a horizontal position with respect to the work table 1B on the lower surface of the main body 11, and each arch has a band release means such as a flap.The band is connected to a band guide 33. The band is guided from the band coil 65 outside the inverted packaging machine 54 into the packaging machine main body 11 through the inverted packaging machine 54. In Figs.
Like the embodiment, it has a fixed roller 3 and a dancer roller 4, and a band reel box 13 having a control panel on the top is arranged side by side. The stopper 1 is not provided near the band outlet 49, and as shown in FIG.
3, a handle roller 41 is provided which can freely come into contact with and separate from an idle roller 43. The band outlet 49 is provided obliquely above the fixed roller 3 and is directly connected to the band insertion opening of the band guide 33. The rest is the same as the first embodiment. In the second embodiment, when loading the band, the stopper 2 is
FF, the dancer roller 4 is stopped at the upper limit, the stopper 1 provided on the tension arm shooter 62 is OFF,
The handle roller 41 and the idle roller 42 are separated by a crank mechanism 63, and the lifting frame 56 and the packaging machine main body 11 are positioned at their upper limit (the position indicated by the solid line in FIG. 5). Pull out a suitable length of the band from the band reel box 13, and introduce the band into the pool box from the band entrance 48 (the band is passed from the stopper 2, between the fixed roller 3 and the dancer roller 4, as in the first embodiment). , is pulled out of the pool box 21 from the band outlet 49 through the gap between the handle roller 41 and the idler roller 42, and is inserted into the band insertion opening of the band guide 33 of the inverted packing machine 54.In this state, the handle is pulled out by the crank mechanism 63. By slidingly contacting the roller 41 with the idle roller 42 via the band and rotating the handle roller 41 by hand or other means, the band is moved from the band guide 33 to the band entrance of the packing machine main body 11, the tension arm shooter 62, and the tension It is fed through the arm 15 into a bearing case 51 having a pair of feed rollers 52.A limit switch LS3 is provided inside the bearing case 51, and the band is fed into a bearing case 51 having a pair of feed rollers 52.
The tension arm shooter 6 detects that the
Stopper 1 provided at 2 is turned on to complete loading of the band. Similar to the first embodiment, the dancer roller 4 is lowered by the air cylinder 17 of the pool box 21, and the band is pulled out from the band coil 65 and pooled. dancer
When the roller 4 reaches the lowering limit (position ii indicated by the symbol Z in FIG. 5), the dancer roller 4 is turned upward by the limit switch LS2, and the band pooling is completed. When the dancer roller 4 reaches its upper limit, the stopper 2 is turned on by the switch LSI, and the stopper 1 of the tension arm shooter 62 is turned off, and feeding of the band is started. The feed roller rotates normally and feeds the band in the order of the upper arch 57, the left vertical arch 59 in FIG. 5, the lower arch 61, the left vertical arch 60, and the upper right arch 58 in FIG. When the band tip reaches LS4, the band tip side is gripped by a press member (not shown), and band tightening and pulling back are started. In the second embodiment, the band is pulled back while the packaging machine main body 11 is lowered together with the lifting frame 56 that is lowered by chain drive at the same time as the feed roller is reversed. In parallel with the band being detached from each arch and being wound around the corrugated material, that is, at the same time as the band is being pulled back, the air cylinder 17 is operated, and the dancer roller 4 is lowered to cover the pulled back part. backpool the band (
5th row number Y). When the packing machine main body 11 further descends, the object detection limit switch LS5, which protrudes below the work table 18, collides with the object to be packed and is activated. IJ Et Switch LS
5, the packaging machine main body 11 stops descending, and at the same time, the feed rollers end their reverse rotation, the dancer rollers 4 stop descending (the air cylinder 17 becomes free), and the band pulling back ends. At the same time as the band is pulled back, the stopper 1 provided on the tension arm shooter 62 is turned on, and the tension arm 15 is vibrated by an air cylinder (not shown) to tighten the band, and the band is melted by known means.
At the signal indicating the end of cutting and crimping, the air cylinder 17 for the dancer roller 4 is turned on again. Due to the action of the limit cam, the m-packaging machine main body 11 starts to rise and the dancer
The roller 4 resumes its descent, and the excess band generated by the lifting of the packaging machine body 11 is backpooled. When the packing machine main body 11 reaches the upper limit, the limit switch L is activated.
SI operates and turns stopper 2 OFF. During this time, the dancer roller 4 continues to descend, pooling the amount of bands necessary for the next band feeding. When the dancer roller 4 reaches the lowering limit, the dancer roller 4 is turned upward by the limit switch LS2, and when the dancer roller 4 reaches the upper limit, the limit switch LSI is activated and the % stopper 2 is activated.
Kaon, tenshi. The stopper 1 of the on-arm shooter 62 is turned off, and a standby state is entered for band feeding. The same action is repeated thereafter.

【effect】

As described above, the present invention eliminates the drawbacks of the conventional one-balancer type example, allows a desired amount of bands to be pooled without damaging the bands, and also allows bands to be fed into the pool box more than necessary. This is a band pool device with no problems.

[Brief explanation of the drawing]

1 to 5 show embodiments of the present invention. FIG. 1 is a front view of the first embodiment, and FIGS. 2(A) and CB) are sectional views of essential parts of the pool box, and Fig. 3 is a front view of the second embodiment, Fig. 4 is a schematic diagram showing the band feeding, pulling back, and tightening mechanism parts in the second embodiment, and Fig. 5 is a schematic diagram showing the inside of the pool box according to the second embodiment. It is. FIGS. 6 to 8 show conventional means, and are respectively an overall perspective view, an exploded perspective view of a pool box, and an exploded perspective view of a pool feed unit.

Claims (1)

[Scope of Claims] A main body equipped with various mechanisms necessary for packing such as band supply, tightening, adhesion, and cutting, and a band attached to one side of the main body and positioned parallel to the side to wrap around the object to be packed. A band guide arch is provided for arranging the band, and the band is supplied from the band coil to the band guide arch via the band supply mechanism through a pool box having a band inlet and an outlet and a gap slightly wider than the band width. In the automatic packaging machine, a plurality of fixed rollers are supported at appropriate intervals near one side of the pool box, and from near the one side of the pool box near the plurality of fixed rollers,
A dancer roller that can freely move back and forth on the same straight line is provided near the other side facing the one side, and a stopper for fixing the band is provided near the band supply and tightening mechanism and/or the band exit of the pool box. A band pooling device for packing bands in a packing machine, characterized in that: